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A. D. KLABER. KEY OPERATED FOLDING TUBE.

No. 537,928. Patented Apr. 23, 1895.

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UNITED STATES PATENT OFFICE.

AUGUSTUS D. KLABER, OF NEW YORK, N. Y., ASSIGNOR TO THE NEOSTYLECOMPANY, OF SAME PLACE.

KEY OPERATED FOLDING TUBE.

SPECIFICATION forming part of Letters Patent No. 537,928, dated April23, 1895.

Application filed February 2'7, 1895. Serial NO-.539|958 (N0 111011 1 Toall whom it may concern:

Be it known that I, AUGUSTUS D. KLABER, a subject of the Queen of GreatBritain, residing at New York, in the county of New York and State ofNew York, have invented a certain new, useful, and valuable Improvementin Key-Operated Folding Tubes, of which the following is a full, clear,and exact description.

My present invention relates to key operated folding tubes, and has forits object to provide the combination and arrangements of parts such aswill be hereinafter fully described. v

Figure 1 is a side elevation of my device; and Figs. 2, 3, and 4 showvarious forms of folders or keys to be used therewith.

Throughout both views of the accompanyin g drawings, and the followingspecification, like characters of reference indicate correspondingparts.

I am aware that numerous forms of tubes and packing cases for semi-fluidand plastic substances have been devised for either completely expungingthe contents of such tubes or cases, or for expunging plastic substancesof a stiff consistency, whereas my device not only accomplishes theseends but also permits the contentsof such receptacles to be ex ingaction is to gradually bring the sides of the tubes next the foldertogether and as the material is folded up the area within the tube isdecreased and its contents forced out through the discharging aperture.

The thumb-holds 4, serve as levers and enable a person to expungeplastic substances such as would prove too stifi to be expunged by theordinary method of squeezingthe sides of the tubes together with thefingers.

The forms of folders shown in Figs. 2 amp suitable discharging aperture,a folder provided at one end of the flexible body, and a thumb-holdarranged at one or both ends of the folder, said folder when turned.being adapted to wind the flexible body thereon and force its contentsout through the discharging aperture, substantially as herein described.

In testimony whereof I afiix my signature in presence of two witnesses.

AUGUSTUS D. KLABER.

Witnesses:

J ANDINE LYNG, LE ROY L. EBERLY.

In winding up the key or folder, the result- 40

